/* 资讯博客模板 - aisc6 扁平化青色主题 */
/* 经典三栏式布局，扁平化设计风格 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "SimHei", Arial, sans-serif;
    background-color: #e0f7fa;
    color: #004d40;
    line-height: 1.6;
    font-size: 16px;
}

.header-container, .breadcrumb-container, .main-wrapper, .three-column-layout, .footer-container, .links-container, .page-title-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航栏 */
.site-header {
    background-color: #00acc1;
    border-bottom: 3px solid #00838f;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.site-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #ffffff;
}

.logo-image {
    max-height: 44px;
    width: auto;
    margin-right: 12px;
}

.site-name {
    font-size: 22px;
    font-weight: 600;
    color: #ffffff;
}

.header-search-form {
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-input-field {
    padding: 9px 16px;
    border: 2px solid #ffffff;
    border-radius: 4px;
    width: 280px;
    font-size: 14px;
    outline: none;
    background-color: #ffffff;
}

.search-input-field:focus {
    border-color: #00838f;
    box-shadow: 0 0 0 3px rgba(0, 131, 143, 0.2);
}

.search-submit-btn {
    padding: 9px 24px;
    background-color: #00838f;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.3s;
}

.search-submit-btn:hover {
    background-color: #006064;
}

/* 主导航 */
.main-navigation-bar {
    background-color: #00838f;
}

.navigation-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-menu-item {
    border-right: 1px solid rgba(255,255,255,0.2);
}

.nav-menu-item:last-child {
    border-right: none;
}

.nav-menu-link {
    display: block;
    padding: 14px 24px;
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: background-color 0.3s;
}

.nav-menu-link:hover,
.nav-menu-link.active {
    background-color: #006064;
}

/* 面包屑导航 */
.breadcrumb-navigation {
    background-color: #ffffff;
    padding: 12px 0;
    border-bottom: 1px solid #b2dfdb;
}

.breadcrumb-list-items {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
}

.breadcrumb-list-item {
    display: flex;
    align-items: center;
}

.breadcrumb-separator {
    margin: 0 8px;
    color: #80cbc4;
}

.breadcrumb-list-item a {
    color: #00acc1;
    text-decoration: none;
}

.breadcrumb-list-item a:hover {
    color: #00838f;
    text-decoration: underline;
}

.breadcrumb-list-item.active {
    color: #00695c;
}

/* 主要内容区域 */
.main-wrapper {
    padding: 35px 0;
}

.three-column-layout {
    display: grid;
    grid-template-columns: 200px 1fr 280px;
    gap: 25px;
}

/* 左侧边栏 */
.left-sidebar-column {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.sidebar-widget-box {
    background-color: #ffffff;
    border-radius: 6px;
    padding: 18px;
    box-shadow: 0 2px 6px rgba(0,172,193,0.15);
}

.widget-header-section {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 3px solid #00acc1;
}

.widget-title-text {
    font-size: 17px;
    font-weight: 600;
    color: #004d40;
}

.category-menu-list {
    list-style: none;
}

.category-menu-item {
    border-bottom: 1px solid #e0f7fa;
}

.category-menu-item:last-child {
    border-bottom: none;
}

.category-menu-item.category-active .category-menu-link {
    background-color: #e0f7fa;
    color: #00acc1;
    font-weight: 600;
}

.category-menu-link {
    display: block;
    padding: 11px 14px;
    color: #00695c;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
    border-radius: 4px;
}

.category-menu-link:hover {
    background-color: #e0f7fa;
    color: #00acc1;
    padding-left: 18px;
}

.hot-articles-list {
    list-style: none;
}

.hot-article-item {
    padding: 11px 0;
    border-bottom: 1px dashed #b2dfdb;
}

.hot-article-item:last-child {
    border-bottom: none;
}

.hot-article-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #00695c;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.hot-article-link:hover {
    color: #00acc1;
}

.article-rank-number {
    width: 26px;
    height: 26px;
    background-color: #00acc1;
    color: #ffffff;
    text-align: center;
    line-height: 26px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

.article-title-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.article-views-count {
    color: #80cbc4;
    font-size: 12px;
    flex-shrink: 0;
}

.tags-cloud-container {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.tag-cloud-link {
    padding: 6px 13px;
    background-color: #e0f7fa;
    color: #00695c;
    text-decoration: none;
    border-radius: 4px;
    font-size: 13px;
    transition: all 0.3s;
}

.tag-cloud-link:hover {
    background-color: #00acc1;
    color: #ffffff;
}

/* 中间主内容区 */
.main-content-column {
    min-width: 0;
}

/* 焦点文章区域 */
.featured-articles-section {
    margin-bottom: 35px;
}

.featured-articles-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 16px;
}

.featured-article-card {
    background-color: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,172,193,0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}

.featured-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,172,193,0.25);
}

.featured-large-card {
    grid-row: 1 / 3;
}

.featured-article-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.featured-article-image {
    width: 100%;
    flex: 1;
    overflow: hidden;
    background-color: #e0f7fa;
}

.featured-large-card .featured-article-image {
    height: 420px;
}

.featured-article-card:not(.featured-large-card) .featured-article-image {
    height: 160px;
}

.featured-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-article-content {
    padding: 18px;
}

.featured-article-title {
    font-size: 20px;
    font-weight: 600;
    color: #004d40;
    margin-bottom: 11px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-large-card .featured-article-title {
    font-size: 24px;
    -webkit-line-clamp: 3;
}

.featured-article-description {
    font-size: 13px;
    color: #00695c;
    line-height: 1.6;
    margin-bottom: 13px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-article-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: #00838f;
    flex-wrap: wrap;
}

.meta-author-name {
    color: #00838f;
    font-weight: 500;
}

.meta-publish-time {
    color: #00838f;
}

.meta-views-count {
    color: #00838f;
}

.meta-source {
    color: #80cbc4;
    font-size: 11px;
}

.meta-separator {
    color: #b2dfdb;
}

/* 文章列表 */
.latest-articles-section {
    margin-bottom: 35px;
}

.section-header-block {
    margin-bottom: 22px;
    padding-bottom: 12px;
    border-bottom: 3px solid #00acc1;
}

.section-title-heading {
    font-size: 22px;
    font-weight: 600;
    color: #004d40;
}

.articles-list-container {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.article-list-item {
    display: flex;
    gap: 18px;
    padding: 24px 0;
    border-bottom: 1px solid #b2dfdb;
    background-color: #ffffff;
    padding: 24px;
    margin-bottom: 16px;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,172,193,0.1);
}

.article-list-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.article-thumbnail-image {
    flex-shrink: 0;
    width: 240px;
    height: 160px;
    overflow: hidden;
    border-radius: 6px;
    background-color: #e0f7fa;
}

.article-thumbnail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content-info {
    flex: 1;
    min-width: 0;
}

.article-item-title {
    font-size: 19px;
    font-weight: 600;
    margin-bottom: 11px;
}

.article-item-title a {
    color: #004d40;
    text-decoration: none;
    transition: color 0.3s;
}

.article-item-title a:hover {
    color: #00acc1;
}

.article-item-description {
    color: #00695c;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 13px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-item-meta {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 12px;
    color: #00838f;
    flex-wrap: wrap;
}

.item-meta-author {
    color: #00838f;
    font-weight: 500;
}

.item-meta-time {
    color: #00838f;
}

.item-meta-views {
    color: #00838f;
}

.item-meta-category {
    color: #00acc1;
    text-decoration: none;
    transition: color 0.3s;
}

.item-meta-category:hover {
    color: #00838f;
    text-decoration: underline;
}

.item-meta-source {
    color: #80cbc4;
    font-size: 11px;
}

.item-meta-separator {
    color: #b2dfdb;
}

/* 分页 */
.pagination-container {
    margin-bottom: 35px;
}

.pagination-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.pagination-link {
    padding: 9px 17px;
    background-color: #ffffff;
    color: #00acc1;
    text-decoration: none;
    border: 2px solid #00acc1;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.pagination-link:hover {
    background-color: #00acc1;
    color: #ffffff;
}

.pagination-active {
    background-color: #00acc1;
    color: #ffffff;
    border-color: #00acc1;
}

/* 右侧边栏 */
.right-sidebar-column {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.latest-articles-list {
    list-style: none;
}

.latest-article-item {
    padding: 11px 0;
    border-bottom: 1px dashed #b2dfdb;
}

.latest-article-item:last-child {
    border-bottom: none;
}

.latest-article-link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: #00695c;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.latest-article-link:hover {
    color: #00acc1;
}

.article-publish-time {
    font-size: 11px;
    color: #80cbc4;
}

.recommended-articles-list {
    list-style: none;
}

.recommended-article-item {
    padding: 12px 0;
    border-bottom: 1px dashed #b2dfdb;
}

.recommended-article-item:last-child {
    border-bottom: none;
}

.recommended-article-link {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.recommended-thumbnail {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    overflow: hidden;
    border-radius: 4px;
    background-color: #e0f7fa;
}

.recommended-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.recommended-content {
    flex: 1;
    min-width: 0;
}

.recommended-title {
    font-size: 13px;
    font-weight: 500;
    color: #004d40;
    margin-bottom: 7px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recommended-meta {
    font-size: 11px;
    color: #80cbc4;
    display: flex;
    align-items: center;
    gap: 5px;
}

.latest-comments-list {
    list-style: none;
}

.comment-item {
    padding: 12px 0;
    border-bottom: 1px dashed #b2dfdb;
}

.comment-item:last-child {
    border-bottom: none;
}

.comment-user-name {
    font-weight: 600;
    color: #00acc1;
    margin-bottom: 6px;
    font-size: 13px;
}

.comment-content-text {
    color: #00695c;
    font-size: 12px;
    line-height: 1.5;
    margin-bottom: 8px;
}

.comment-meta-info {
    font-size: 11px;
    color: #80cbc4;
    display: flex;
    align-items: center;
    gap: 8px;
}

.comment-meta-info a {
    color: #00838f;
    text-decoration: none;
}

.comment-meta-info a:hover {
    color: #00acc1;
    text-decoration: underline;
}

/* 列表页标题 */
.page-title-section {
    background-color: #00acc1;
    color: #ffffff;
    padding: 32px 0;
    margin-bottom: 28px;
}

.page-title-heading {
    font-size: 30px;
    font-weight: 600;
    margin-bottom: 10px;
}

.page-description-text {
    font-size: 15px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 10px;
}

.page-article-count {
    font-size: 13px;
    color: rgba(255,255,255,0.8);
}

/* 内容页 */
.article-detail-main {
    background-color: #ffffff;
    border-radius: 8px;
    padding: 38px;
    margin-bottom: 28px;
    box-shadow: 0 2px 8px rgba(0,172,193,0.15);
}

.article-detail-header {
    margin-bottom: 32px;
    padding-bottom: 22px;
    border-bottom: 2px solid #e0f7fa;
}

.article-detail-title {
    font-size: 34px;
    font-weight: 600;
    color: #004d40;
    margin-bottom: 18px;
    line-height: 1.3;
}

.article-detail-meta-bar {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 13px;
    color: #00838f;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.detail-meta-author {
    color: #00838f;
    font-weight: 500;
}

.detail-meta-time {
    color: #00838f;
}

.detail-meta-views {
    color: #00838f;
    font-weight: 500;
}

.detail-meta-category {
    color: #00acc1;
    text-decoration: none;
    transition: color 0.3s;
}

.detail-meta-category:hover {
    color: #00838f;
    text-decoration: underline;
}

.detail-meta-source {
    color: #80cbc4;
    font-size: 12px;
}

.detail-meta-inputer {
    color: #80cbc4;
    font-size: 12px;
}

.detail-meta-separator {
    color: #b2dfdb;
}

.meta-label {
    font-weight: 500;
}

.article-detail-featured-image {
    margin-top: 22px;
    border-radius: 8px;
    overflow: hidden;
    background-color: #e0f7fa;
}

.article-detail-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.article-detail-body {
    font-size: 17px;
    line-height: 1.8;
    color: #004d40;
    word-wrap: break-word;
}

.article-detail-body * {
    font-size: inherit;
    color: inherit;
}

.article-detail-body p {
    margin-bottom: 20px;
}

.article-detail-body img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 28px auto;
    border-radius: 8px;
}

.article-detail-body h1, .article-detail-body h2, .article-detail-body h3, .article-detail-body h4, .article-detail-body h5, .article-detail-body h6 {
    margin-top: 32px;
    margin-bottom: 18px;
    font-weight: 600;
    color: #004d40;
    line-height: 1.4;
}

.article-detail-body h1 { font-size: 28px; }
.article-detail-body h2 { font-size: 26px; }
.article-detail-body h3 { font-size: 24px; }

.article-detail-body ul, .article-detail-body ol {
    padding-left: 30px;
    margin-bottom: 20px;
}

.article-detail-body li {
    margin-bottom: 10px;
}

.article-detail-body a {
    color: #00acc1;
    text-decoration: underline;
}

.article-detail-body a:hover {
    color: #00838f;
}

.article-detail-body blockquote {
    border-left: 4px solid #00acc1;
    padding: 15px 20px;
    margin: 28px 0;
    background-color: #e0f7fa;
    border-radius: 4px;
    color: #00695c;
    font-style: italic;
}

.article-detail-body code {
    background-color: #e0f7fa;
    padding: 3px 8px;
    border-radius: 4px;
    font-family: "Courier New", monospace;
    font-size: 15px;
    color: #d32f2f;
}

.article-detail-body pre {
    background-color: #004d40;
    color: #e0f7fa;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 28px 0;
}

.article-detail-body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.article-detail-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 28px 0;
}

.article-detail-body table th, .article-detail-body table td {
    border: 1px solid #b2dfdb;
    padding: 12px;
    text-align: left;
}

.article-detail-body table th {
    background-color: #00acc1;
    color: #ffffff;
    font-weight: 600;
}

.article-detail-tags {
    margin-top: 32px;
    padding-top: 22px;
    border-top: 2px solid #e0f7fa;
    display: flex;
    align-items: center;
    gap: 9px;
    flex-wrap: wrap;
}

.tags-label-text {
    color: #00695c;
    font-size: 14px;
    font-weight: 500;
}

.tag-badge-item {
    padding: 6px 13px;
    background-color: #e0f7fa;
    color: #00695c;
    text-decoration: none;
    border-radius: 4px;
    font-size: 13px;
    transition: all 0.3s;
}

.tag-badge-item:hover {
    background-color: #00acc1;
    color: #ffffff;
}

/* 上下篇导航 */
.article-navigation-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 35px;
}

.navigation-item {
    padding: 18px;
    background-color: #ffffff;
    border: 2px solid #e0f7fa;
    border-radius: 6px;
    transition: all 0.3s;
}

.navigation-item:hover {
    border-color: #00acc1;
    box-shadow: 0 2px 8px rgba(0,172,193,0.15);
}

.navigation-label {
    display: block;
    font-size: 12px;
    color: #80cbc4;
    margin-bottom: 8px;
}

.navigation-link {
    color: #004d40;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s;
    display: block;
    line-height: 1.5;
}

.navigation-link:hover {
    color: #00acc1;
}

.navigation-next {
    text-align: right;
}

/* 相关文章 */
.related-articles-section {
    margin-bottom: 35px;
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.related-article-card {
    background-color: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,172,193,0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}

.related-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,172,193,0.25);
}

.related-article-image {
    width: 100%;
    height: 140px;
    overflow: hidden;
    background-color: #e0f7fa;
}

.related-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-article-content {
    padding: 15px;
}

.related-article-title {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 9px;
}

.related-article-title a {
    color: #004d40;
    text-decoration: none;
    transition: color 0.3s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.related-article-title a:hover {
    color: #00acc1;
}

.related-article-meta {
    font-size: 11px;
    color: #80cbc4;
    display: flex;
    align-items: center;
    gap: 5px;
}

.related-meta-author {
    color: #00838f;
    font-weight: 500;
}

/* 文章信息 */
.article-info-list {
    list-style: none;
}

.info-list-item {
    padding: 14px 0;
    border-bottom: 1px solid #e0f7fa;
}

.info-list-item:last-child {
    border-bottom: none;
}

.info-label-text {
    display: block;
    font-size: 12px;
    color: #80cbc4;
    margin-bottom: 7px;
}

.info-value-text {
    font-size: 14px;
    color: #004d40;
    font-weight: 500;
}

.info-value-text.highlight-value {
    color: #00acc1;
    font-size: 26px;
    font-weight: 600;
}

.info-value-text a {
    color: #00acc1;
    text-decoration: none;
    transition: color 0.3s;
}

.info-value-text a:hover {
    color: #00838f;
    text-decoration: underline;
}

.info-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 5px;
}

.tag-mini-item {
    padding: 4px 10px;
    background-color: #e0f7fa;
    color: #00695c;
    text-decoration: none;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.3s;
}

.tag-mini-item:hover {
    background-color: #00acc1;
    color: #ffffff;
}

.related-articles-list {
    list-style: none;
}

.related-article-item {
    padding: 11px 0;
    border-bottom: 1px dashed #b2dfdb;
}

.related-article-item:last-child {
    border-bottom: none;
}

.related-article-link {
    color: #00695c;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
    display: block;
}

.related-article-link:hover {
    color: #00acc1;
}

/* 友情链接区域 */
.friendship-links-section {
    background-color: #ffffff;
    padding: 30px 0;
    margin-top: 35px;
    border-top: 1px solid #b2dfdb;
}

.links-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.links-item-list {
    list-style: none;
}

.links-item-list li {
    padding: 8px 0;
    border-bottom: 1px dashed #b2dfdb;
}

.links-item-list li:last-child {
    border-bottom: none;
}

.links-item-list a {
    color: #00695c;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.links-item-list a:hover {
    color: #00acc1;
}

/* 页脚 */
.site-footer-section {
    background-color: #004d40;
    color: #e0f7fa;
    padding: 48px 0 28px;
    margin-top: 48px;
}

.footer-main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #ffffff;
}

.footer-info-text {
    color: #b2dfdb;
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-copyright-text {
    color: #80cbc4;
    font-size: 13px;
}

.footer-navigation-links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-navigation-links a {
    color: #b2dfdb;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-navigation-links a:hover {
    color: #ffffff;
}

.footer-bottom-section {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid #00695c;
}

.beian-info-text {
    margin-bottom: 10px;
}

.beian-info-text a {
    color: #80cbc4;
    text-decoration: none;
    font-size: 13px;
}

.beian-info-text a:hover {
    color: #e0f7fa;
}

.footer-disclaimer-text {
    color: #80cbc4;
    font-size: 12px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background-color: #00acc1;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,172,193,0.3);
    transition: all 0.3s;
    z-index: 999;
    font-size: 20px;
    font-weight: bold;
}

.back-to-top:hover {
    background-color: #00838f;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,172,193,0.4);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .three-column-layout {
        grid-template-columns: 180px 1fr 260px;
    }
    
    .featured-articles-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }
    
    .featured-large-card {
        grid-row: auto;
    }
}

@media (max-width: 768px) {
    .three-column-layout {
        grid-template-columns: 1fr;
    }
    
    .left-sidebar-column, .right-sidebar-column {
        margin-top: 25px;
    }
    
    .header-top-bar {
        flex-direction: column;
        gap: 14px;
        align-items: flex-start;
    }
    
    .search-input-field {
        width: 100%;
        max-width: 100%;
    }
    
    .navigation-menu {
        flex-wrap: wrap;
    }
    
    .featured-articles-grid {
        grid-template-columns: 1fr;
    }
    
    .article-list-item {
        flex-direction: column;
    }
    
    .article-thumbnail-image {
        width: 100%;
        height: 220px;
    }
    
    .article-navigation-bar {
        grid-template-columns: 1fr;
    }
    
    .related-articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-main-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .links-grid-layout {
        grid-template-columns: 1fr;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #e0f7fa;
}

::-webkit-scrollbar-thumb {
    background: #00acc1;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #00838f;
}

/* 473628 */